Propagate probing cluster id to SendTimeHistory.

webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_abs_send_time.h

Index: webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_abs_send_time.h
diff --git a/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_abs_send_time.h b/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_abs_send_time.h
index a6119091ce75f965c69e145dd53555aeafd58383..70a8d7a0b8a7938fdef10b3ea68eeb29332ba7a0 100644
--- a/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_abs_send_time.h
+++ b/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_abs_send_time.h
@@ -77,7 +77,7 @@ class RemoteBitrateEstimatorAbsSendTime : public RemoteBitrateEstimator {
   void IncomingPacket(int64_t arrival_time_ms,
                       size_t payload_size,
                       const RTPHeader& header,
-                      bool was_paced) override;
+                      int probe_cluster_id) override;
   // This class relies on Process() being called periodically (at least once
   // every other second) for streams to be timed out properly. Therefore it
   // shouldn't be detached from the ProcessThread except if it's about to be
@@ -103,7 +103,7 @@ class RemoteBitrateEstimatorAbsSendTime : public RemoteBitrateEstimator {
                           uint32_t send_time_24bits,
                           size_t payload_size,
                           uint32_t ssrc,
-                          bool was_paced);
+                          int probe_cluster_id);
 
   void ComputeClusters(std::list<Cluster>* clusters) const;